Now I'm home and testing..
I found the video window was open but 'crushed' at the bottom
of the SONAR screen. So I resized it and now I can clearly see
this video view window with the SMPTE red letters on top of it. Fine.
BUT when I play back the imported video this video view
only shows a static purple square with no video playing..
I went thru all different preference settings with no success..
Again I'm using a video card with 2 simultaneous HDMI screens.
Sonar runs on the left screen and there is nothing on the right one.
All is running inside the left screen.
Weird...
BTW The imported video file is MPG1 and I can clearly see it on the upper video track.